Square Universal Portable Power Bank

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Black External Square 5400mAh Universal Portable Power Bank For Gaming/Phone


Competitive Advantage:


1. Logo customized service, OEM service.

2. Experienced technical staff

3. New and advanced machines

4. High quality control team

5. Professional design team to make best designs for customers


Warranty and return


1. All products and accessories have been tested by 3 times before ship out.

2. All products have 1 year warranty, we will replace or repair for you free.

3. Best after-sale-service. 




Compatible Models

All devices with USB charging cable

Battery Type

Li-ion battery

Nominal Capacity


Battery Actual Capacity


Capacity Range


Input Voltage

DC 5.0V

Output Current


Output Voltage

DC 5.0V

Charge time

2-4 hours

Working temperature

-10--55 degree

Circle times

>500 times

Plug and play



many different colors avaliable

Safety protection

over-current, over-heat and over-voltage



  1. High capacity. It can fully charge your smart phone many times.
  2. Digital power specially designed for all cellphones to avoid over-charging or damaging your phone.
  3. High efficiency of power conversion.
  4. Integrated smart chip provides full protection against electric overload.
  5. Steady high-current output ensures charging efficiency and safety.



     1. Guaranteed  18650 batteries, safety care for digital devices.

     2. Support the iPhone, iPod, iPod and all kinds of brand mobile phone, digital electronic products,

tablet PC, GPS, navigation and other electronic equipment, etc.  

     3. Delicate and beautiful appearance, multicolor dazzle colour is optional

     4. Intelligent circuit protection, perfect to protect your devices.

     5. Smart technology, instant plug and play

     6. Available when dinner, travel, games, food, etc 




Do not break,dismantling,into the fire or placed in hot and humid place get out of children

Please turn off the power button when not in use.in order to avoid continuous power depletion.

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Mr. Cherry
Tel: 86-755-33127895
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Shenzhen Yiwerder Electronic Technology Co., Ltd
NO.15 Building, No.1 Industry Zone, Minzhi, Shenzhen, Guangdong, China (Mainland)
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